Matt, Brooks and Andy take on the week in science, delving into important matters including:

Comet close calls! Speeding neutrinos! Turing test -- is Matt a robot? How about Andy? Space junk! Seals and kangaroos: cute or a nuisance? Did Columbus's arrival cool the earth? The Glassblower's Oath: Thou shalt not make a bong. Murderers for science!